Question

Multicellular organisms use cell division and mitosis for growth, maintenance, and repair of cells and tissues. There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. Single-celled organisms may use cell division as their method of reproduction. Regardless of the reason for mitosis, the process ensures genetic continuity. Consider the model of the cell cycle. Which details from the model best support the argument that cell division promotes genetic continuity? Responses A mitosis and cytokinesismitosis and cytokinesis B DNA restriction point and inclusion of G0DNA restriction point and inclusion of G 0 C checkpoints throughout and replication during mitosischeckpoints throughout and replication during mitosis D the template DNA provides for making copies during replicationthe template DNA provides for making copies during replication

Answer 1

To support the argument that cell division promotes genetic continuity, the best choice among the given options would be:

A. mitosis and cytokinesis.

Mitosis is the process through which a single cell divides to produce two genetically identical daughter cells. Cytokinesis follows mitosis and is the process where the cell's cytoplasm divides, further ensuring that the two new cells are separate and complete. Together, mitosis and cytokinesis are crucial for maintaining genetic continuity, as they ensure that each daughter cell receives an exact copy of the parent cell's genetic material. This directly ties to the concept of genetic continuity in multicellular organisms as well as in single-celled organisms during reproduction.

Other options, while they describe important aspects of the cell cycle, do not directly focus on the primary roles of mitosis and cytokinesis in promoting genetic continuity as clearly as option A does.